5-phenyl-1,3,4-oxadiazole-2-carbohydrazide CAS 99367-59-6
| CAS No. | 99367-59-6 |
| Molecular Formula | C9H8N4O2 |
| Molecular Weight | 204.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-phenyl-1,3,4-oxadiazole-2-carbohydrazide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
5-phenyl-1,3,4-oxadiazole-2-carbohydrazide (CAS 99367-59-6), molecular formula C9H8N4O2 and molecular weight 204.19 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-phenyl-1,3,4-oxadiazole-2-carbohydrazide (C9H8N4O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H8N4O2 |
| Molecular Weight | 204.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 4 |
Related phenyl Standards
- 3-phenyl-1,2,4-oxadiaZole-5-carbohydrazide (CAS 90323-72-1)
- 5-Phenyl-1,2,4-oxadiazole-3-carbohydrazide (CAS 90323-71-0)
- 3-Benzyl-1,2,4-oxadiazole-5-carboxylic acid (CAS 1159694-86-6)
- 5-Benzyl-1,2,4-oxadiazole-3-carboxylic acid (CAS 19706-09-3)
- 1,2,5-oxadiazole-3,4-diylbis[(4-chlorophenyl)methanone] 65938-08-1 KST-1B7051 (CAS 65938-08-1)
- 5-Phenyl-1,3,4-oxadiazole-2-carbonyl chloride (CAS 98591-60-7)
- Oxadiazole-1 (CAS 1673534-73-0)
- 5-Benzyl-[1,3,4]oxadiazole-2-thiol (CAS 23288-90-6)
Recommended Standards
- 6-(4-Aminophenyl)-1,3,5-triazine-2,4(1H,3H)-dione (CAS 62808-08-6)
- 5-Methyl-N-(pyrazin-2-yl)isoxazole-3-carboxamide (CAS 830341-31-6)
- 6-(Phenylamino)-1,3,5-triazine-2,4(1H,3H)-dione (CAS 20964-55-0)
- 5-Methyl-3-(trifluoromethyl)-4,5,6,7-tetrahydro-1H-indazole (CAS 879981-36-9)
- 3-(5-(Trifluoromethyl)isoxazol-4-yl)propanenitrile (CAS 220370-60-5)
- Ethyl (1R,3R)-3-hydroxycyclohexane-1-carboxylate (CAS 2306249-93-2)
- (1R,4R)-2-ETHYL-2,5-DIAZABICYCLO[2.2.1]HEPTANE 2HBR (CAS 1788036-26-9)
- Carbon dioxide-<SUP>13</SUP>C (CAS 1111-72-4)
- Isoprunetin 7-O-glucoside (CAS 128856-77-9)
- 3,4-Dichloro-N-((5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methyl)-N-(4-methoxyphenyl)benzamide (CAS 956368-40-4)
- Chroman-2-carboxamide (CAS 3990-58-7)
- 4-(2-Fluoro-5-(trifluoromethyl)phenyl)pyridine (CAS 1214383-00-2)
- 2-Chloro-N-(3-cyano-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl)acetamide (CAS 315684-12-9)
- Insulin Degludec Impurity 15 (CAS CATO-C4X-215715)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com